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From: Laurenz Albe <laurenz.albe@cybertec.at>
To: pavan95 <pavan.postgresdba@gmail.com>
To: pgsql-admin@postgresql.org
Subject: Re: Calculation of Database Size in postgres
Date: Wed, 14 Feb 2018 11:21:21 +0100
Message-ID: <1518603681.2402.0.camel@cybertec.at> (raw)
In-Reply-To: <1518603470895-0.post@n3.nabble.com>
References: <1518603470895-0.post@n3.nabble.com>

pavan95 wrote:
> In postgres for knowing the size of a database we generally use the system
> administration function "pg_database_size('database_name')".
> 
> I am curious to know how does this calculate internally from the pages(free
> pages/fragmented pages/full pages) stored in the disk?

It just adds up the sizes of the files that make up the database.

Yours,
Laurenz Albe




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